Event ID 49 — Backup Operations

Updated: January 27, 2011

Applies To: Windows Server 2008

You can use the Windows Server Backup snap-in or the wbadmin command to create and manage backups to protect your operating system, volumes, files, and application data. Backups can be saved to single or multiple disks, DVDs, removable media, or remote shared folders. They can also be scheduled to run automatically or manually.

However, system state backup is only available for the command line and is not available in the Windows Server Backup snap-in user interface. Also, you cannot configure a scheduled backup to create system state backups—but you can script the wbadmin start systemstatebackup command to run backups on a schedule.

In addition, you can use the Local Group Policy Editor snap-in (Gpedit.msc) to allow or disallow certain types of backups or backup locations. Policy settings for Windows Server Backup are located at: Local Computer Policy\Computer Configuration\Administrative Templates\Windows Components\Backup\Server.

Event Details

Product:

Windows Operating System

ID:

49

Source:

Microsoft-Windows-Backup

Version:

6.0

Symbolic Name:

NO_BACKUP_TARGET_AVAILABLE_EVENT

Message:

Backup failed as no target could be found.

Resolve

Confirm that backup storage location is online

Make sure that the backup storage locations are available and then re-run the backup. If between the time the backup starts and ends, Event ID 49 is not logged, then the backup was successful.

To do this, follow these general steps:

If the backup that failed was a scheduled backup, use wbadmin enable backup to determine what disk was used.

Use Disk Management to determine that the disk to be used for storing the backup is online.

Re-run the backup. If the backup that failed was a scheduled backup, see "Create and run a scheduled backup." If the backup that failed was a one-time backup, see "Create a one-time backup."

Look for Event ID 49 in Event Viewer. For more information, see "Confirm that a backup completed with no errors."

To create a scheduled backup, you must have membership in Administrators, or you must have been delegated the appropriate authority. To perform a one-time backup or work with events, you must have membership in Backup Operators or Administrators, or you must have been delegated the appropriate authority.

Create and run a scheduled backup

Note: This procedures describes how to reconfigure and run a scheduled backup. Alternatively, you can use wbadmin start backup with no parameters. This will run a backup using the settings for the scheduled backup.

Make sure that at least one of the backup storage disks is online.

To configure a scheduled backup:

Open an elevated Command Prompt window. Click Start, right-click Command Prompt, and then click Run as administrator.

At the prompt, type: wbadmin enable backup. Use parameters, as needed. (To view the parameters and help for this command, at a command line, type: wbadmin start backup /?).

Note: Reconfiguring a scheduled backup will reformat the backup storage disk and any old backups will be lost.

Create a one-time backup

Make sure that the backup storage location specified by -backupTarget is online.

To perform a one-time backup:

Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.

At the prompt, type: wbadmin start backup. Use parameters, as needed. (To view the parameters and help for this command, at a command line, type: wbadmin start backup /?).

For example, to create a backup that will be stored on drive f, of volumes e:, d:\mountpoint, and \\?\Volume{cc566d14-4410-11d9-9d93-806e6f6e6963}, type: wbadmin start backup -backupTarget:f: -include:e:,d:\mountpoint,\\?\Volume{cc566d14-44a0-11d9-9d93-806e6f6e6963}\.